The second Sentinel-3 satellite, Sentinel-3B, was launched on 25 April, joining its identical twin Sentinel-3A in orbit.
Sentinel-3B is part of the Copernicus EO program, a project run by the European Commission with the aid of the ESA.
The mission is expected to begin routine operations after 5 months. (ESA News).
DCS4COP project is looking forward to work with the data once the satellite is operational!